A railroad employee finds out the identity of "The Wrecker", a criminal who is deliberately causing trains to crash. However, before he can disclose the crook's name, he is shot and killed. A passenger aboard the train volunteers to go after the killer and bring "The Wrecker" to justice.
Royal Canadian Mounted Police Sergeant King protects a girl who has come to claim a mine left by her father. An evil lawyer plans to keep the mine for himself.
Barely out of prison, Jim Regan is arrested once again, this time for the attempted shooting of Denver Dan Norris, the villain who framed him in the first place. With the assistance of his young friend Wally Weston Jim is released once again on the condition that he won't leave town.
Buddy Roosevelt, a notorious bandit known as the "Phantom," and his doppelgänger, drifter Jeff McCloud. Bull manages to throw suspicion on Jeff but is himself killed by Jim Breed (John Junior).
